EP3480837A1 - Switching device with arc extinguishing device and arc guiding - Google Patents
Switching device with arc extinguishing device and arc guiding Download PDFInfo
- Publication number
- EP3480837A1 EP3480837A1 EP18203408.2A EP18203408A EP3480837A1 EP 3480837 A1 EP3480837 A1 EP 3480837A1 EP 18203408 A EP18203408 A EP 18203408A EP 3480837 A1 EP3480837 A1 EP 3480837A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- arc
- arc guide
- outlet opening
- guide plate
- switching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007664 blowing Methods 0.000 claims abstract description 10
- 238000010791 quenching Methods 0.000 abstract description 7
- 230000000171 quenching effect Effects 0.000 abstract description 7
- 238000012217 deletion Methods 0.000 description 3
- 230000037430 deletion Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000036470 plasma concentration Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/342—Venting arrangements for arc chutes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/346—Details concerning the arc formation chamber
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/36—Metal parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/36—Metal parts
- H01H9/362—Mounting of plates in arc chamber
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/446—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/546—Contact arrangements for contactors having bridging contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
Definitions
- the present invention relates to a switching device according to the preamble of independent claim 1.
- a generic switching device has at least one contact point, an arc quenching chamber associated with the contact point, and an arc blowing device associated with the contact point.
- the arc quenching chamber has an outlet opening, can escape from the switching device through the plasma generated by a resulting when opening the contact point switching arc within the switching device, wherein the outlet opening has a clear passage dimension and defines an exit plane.
- the arc blowing device is provided for generating a magnetic blowing field, through which the switching arc arising when the contact point is opened is blown away from the contact point to the outlet opening.
- the switching device further comprises at least a first arc guide plate extending from the contact point to the outlet opening and through which the switching arc on the way from the contact point to the outlet opening is guided and stretched, wherein the first arc guide between the contact point and the exit plane within the arc extinguishing chamber a first portion and a second portion, wherein the first portion of the first arc guide plate proximal to the contact point, and the second portion of the first arc guide plate is disposed distal to the contact point.
- a switching device is for example off EP 3048626 A1 known.
- the resulting when opening the contact point switching arc is stretched within the switching device or within the arc extinguishing chamber to bring the switching arc using the extinguishing elements usually provided in the outlet opening of the arc extinguishing chamber to extinguish reliably.
- this two arc baffles are provided, which diverge relatively strong, starting from the contact point to stretch the switching arc quickly.
- the switching arc is stretched within the switching device to the clear passage dimension of the outlet opening of the arc extinguishing chamber.
- the present invention has therefore set itself the task of specifying a switching device of the generic type that enables a reliable deletion of the switching arc and can be easily and inexpensively manufactured.
- a solution according to the invention before the task when the second portion of the first arc guide in a direction which is parallel to the exit plane, extends beyond the outlet opening, so that the switching arc is stretched through the second portion of the first Lichtbogenleitblechs at least at one end of the switching arc beyond the clear passage dimension of the outlet opening, wherein before the outlet opening projecting from the second portion of the first Lichtbogenleitblechs arc guide pin is disposed through which the switching arc before the outlet opening is shortened again.
- the solution according to the invention has the advantage that the switching arc can be stretched particularly fast and strong within the switching device, which favors a reliable deletion of the switching arc.
- the arc guide plate can be led out of the housing of the switching device at a distance from the outlet opening of the arc extinguishing chamber, which may sometimes be necessary due to certain structural boundary conditions.
- the solution according to the invention prevents unwanted plasma concentrations within the switching device.
- Even arc guide with considerable material thickness can be relatively easily, inexpensively and accurately produced, since a step-shaped course of the arc guide is not necessary.
- the inventively provided arc guide pin is, as well as the arc guide plate, made of an electrically conductive material.
- the arc guide pin can be made of the same material as the arc guide plate.
- Arc guide plate and arc guide pin can for example consist of copper.
- the clear passage dimension of the outlet opening of the arc quenching chamber is measured in the direction of the longitudinal extent of the switching arc projected onto the exit plane.
- the switching arc need not necessarily be stretched beyond the outlet opening on the side opposite the first arc guide plate.
- a stretching of the switching arc beyond the clear passage dimension of the outlet opening should also be understood as meaning that the switching arc is stretched so much only on the side of the first arc guide plate that it does not pass through the outlet opening on this side, so to speak ,
- the arc guide pin can be made particularly simple and inexpensive if the arc guide pin is a simple cylindrical pin.
- the arc guide pin may also have various other shapes.
- a bolt with a hexagonal cross section can be used.
- Such bolts are available as standard parts on the market and therefore also inexpensive.
- an arc guide pin for example, an elongated sheet metal strip can be used.
- the arc guide pin is a bracket which extends transversely to the first arc guide plate, and whose free ends are fixed to the first arc guide plate.
- the bracket preferably has a U-shape.
- the two free ends of the bracket can be bolted to the first arc guide plate, for example.
- the bracket preferably extends transversely to the first arc guide plate over at least 50% of the width of the first arc guide plate.
- the arc guide pin is perpendicular from the second portion of the first arc guide.
- the arc guide pin ends in a direction which is parallel to the exit plane, approximately at the level of the outlet opening, so that the switching arc is shortened by the arc guide pin to the clear passage dimension of the outlet opening.
- unwanted plasma concentrations in the interior of the switching device am most effectively avoided, the switching arc is still optimally stretched before entering the outlet opening or remains.
- the arc guide pin on a baffle-side end with a threaded portion wherein the threaded portion is screwed to a corresponding internal thread of a bore in the first arc guide plate.
- the arc guide pin has a chamfer at its end facing away from the first arc guide plate.
- the chamfer prevents the arc guide pin is destroyed by the switching arc at the top or subject to premature wear.
- the arc guide pin is preferably designed as a bolt, more preferably as a simple cylindrical bolt.
- the arc extinguishing chamber has a plurality of extinguishing elements, which are each arranged spaced apart in the outlet opening, wherein the plasma generated by the switching arc within the switching device can escape between the extinguishing elements through the outlet opening.
- the outlet opening is not infinitesimally small relative to the main movement direction of the switching arc and, so to speak, limited to the exit plane but has a certain depth which corresponds to the length of the deletion elements.
- the first arc guide plate has a third section adjoining the second section, which is led out of a housing of the switching device and at the same time forms a first connection contact of the switching device.
- a connection bolt of the first connection contact viewed in a direction parallel to the exit plane, is preferably arranged between the first arc guide plate and the outlet opening.
- the connecting bolt is preferably arranged below the extinguishing elements, which are located in a laterally arranged outlet opening of the switching device.
- a fixed contact of the contact point is part of the first arc guide plate, wherein the first portion of the first arc guide plate connects directly to the fixed contact and angled relative to the fixed contact, so that the switching arc is stretched by the first section, wherein at least one Part of the second portion of the first arc guide is in turn angled relative to the first portion and extends substantially parallel to the fixed contact.
- a particularly simple and inexpensive construction of the switching device according to the invention in particular by the integrally formed with the fixed contact arc guide plate.
- Essentially parallel in this context means a deviation of maximum plus minus 5 °.
- the first arc guide plate has only two bends. More preferably, the arc guide is more than 10 mm thick and more preferably wider than 30 mm. In this embodiment, it is particularly advantageous if the first arc guide plate only has to be bent twice.
- the switching device further comprises a second arc guide plate, wherein first and second Lichtbogenleitblech starting from the contact point diverge such that the switching arc is first stretched to a length which is above the clear passage dimension of the outlet opening, wherein the switching arc is shortened again in front of the outlet opening due to the arc guide pin.
- FIG. 1 shows an inventive switching device 1 according to a first embodiment of the present invention in an oblique view.
- the viewer facing side of the housing 20 of the switching device 1 is not shown to allow a view of the interior of the switching device 1.
- a contact point 2 of the switching device 1 is arranged within the housing 20, a contact point 2 of the switching device 1 is arranged.
- the contact point 2 comprises a fixed contact 18 and a movable contact 21 which is located on a contact bridge and can be brought into contact with the fixed contact 18 by means of a drive, not shown, of the switching device according to the invention.
- a drive not shown, of the switching device according to the invention.
- Only connected to the contact bridge anchor rod 22 is shown.
- the contact point 2 is associated with an arc quenching chamber, which has an outlet opening 3 on the left side of the housing, can escape from the switching device through the plasma, which is generated by a resulting when opening the contact point switching arc within the switching device.
- the outlet opening has a clear passage 5 and 5 defines an exit plane.
- the arc extinguishing chamber has a plurality of extinguishing elements 13, which are arranged in each case spaced apart in the outlet opening, so that the plasma generated by the switching arc within the switching device can escape between the extinguishing elements 13 from the outlet opening 3.
- the quenching chamber at the top of the switching device 1 of the invention may have a further outlet opening in which also corresponding extinguishing elements 13 is arranged.
- the outlet opening at the top of the housing is assigned in the embodiment shown, both the illustrated contact point 2 and a second contact point, not shown, on the right side of the contact bridge.
- the contact point 2 is further associated with an arc blowing device for generating a magnetic blowing field through which the switching arc arising when the contact point is opened is blown away from the contact point 2 towards the outlet opening 3.
- the arc blower has the in the FIGS. 1 and 2 illustrated Blasmagneten 7th and two parallel to each other and parallel to the image plane of the FIG. 2 arranged pole plates on.
- the switching device In order to guide and stretch the switching arc on the way from the contact point 2 to the outlet opening 3, the switching device has a first arc guide plate 8 and a second arc guide plate 19.
- the two arc guide plates 8 and 19 run apart from the contact point in order to bring about the extension of the switching arc. It has a first immediately adjacent to the fixed contact 18 section 9, a second immediately adjacent to the first section section 10 and one to the second section subsequent third section 11.
- the section 11 is led out of the housing 20 of the switching device according to the invention and at the same time forms a terminal contact of the switching device.
- the outlet opening 3 therefore does not extend down to the third section of the first arc guide plate 8 but ends at a slight distance just above the connection pin 17.
- FIG. 2 shows that the first portion 9 of the first arc guide plate 8 is angled relative to the fixed contact 18, so that the switching arc 4 can be stretched on the way from the contact point to the outlet opening.
- a first part 10.1 of the second section 10 of the first arc guide plate 8 forms, as it were, a pure extension of the first section 9.
- the switching arc is stretched by the first part 10.1 of the second section downwards beyond the clear passage dimension 8 of the outlet opening.
- This extended state of the switching arc is in FIG. 2 denoted by the reference numeral 4 '.
- a second part 10.2 of the second section 10 of the first arc guide plate 8 is angled relative to the first part 10.1 or opposite the first section 9 and extends at right angles to the exit plane 6.
- the second part 10.2 of the second section 10 thus runs parallel to the fixed contact 18th
- the lower base of the switching arc is performed on the second part 10.2 of the second portion 10 of the arc guide plate 8 to just before the outlet opening.
- Just before the outlet is one of the second part 10.2 protruding arc guide pin 12 is arranged, through which the switching arc in front of the outlet opening is shortened again.
- the lower foot of the switching arc travels to the tip of the arc guide pin 12 and stops there when the switching arc is driven into the extinguishing elements 13.
- the position of the switching arc immediately before the extinguishing elements 13 is in FIG.
- the arc guide pin 12 terminates in a direction parallel to the exit plane 6, approximately at the level of the lower exit orifice boundary, such that the lower arc switching arc is shortened by the arc guide pin to the clear passage of the exit orifice becomes.
- the arc guide pin 12 is designed as a simple cylindrical bolt.
- the arc guide pin 12 has a baffle-side end with a threaded portion 14 which can be bolted to a corresponding internal thread of a bore 15 in the first arc guide plate 8.
- the arc guide pin 12 can therefore be bolted to the baffle 8 in a simple manner.
- the arc guide pin 12 has a chamfer 16 in order to prevent burnup of the upper end of the arc guide pin 12 caused by the switching arc.
- FIG. 4 shows a modification of the switching device 1 according to the invention from the FIGS. 1 to 3 in one of the FIG. 2 corresponding side view.
- the upper outlet opening is not provided.
- the first arc guide plate 8 and the second arc guide plate 19 surround the lateral outlet opening in a clip-like manner, wherein the first arc guide plate as in the embodiment of the FIGS. 1 and 2 is spaced from the lower end of the outlet opening and the second arc guide plate 19 tapers directly to the upper end of the outlet opening.
- the stretched within the switching device switching arc is shortened shortly before entering the extinguishing elements on the clear passage 5 of the outlet opening.
- FIG. 5 shows an alternative embodiment of the arc guide pin 12.
- the alternative embodiment of the arc guide pin can be used in both embodiments of the invention described above.
- the alternative arc guide pin 12 in FIG. 5 it is a U-shaped bracket, which extends transversely to the first arc guide plate 8, and whose free ends are attached to the first arc guide plate.
- the two free ends of the bracket at the baffle-side end of the arc guide pin 12 can be screwed to the first arc guide plate, for example his.
- the bracket extends transversely to the first arc guide plate over at least 50% of the width of the first arc guide plate
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
Die vorliegende Erfindung betrifft ein Schaltgerät mit zumindest einer Kontaktstelle, einer der Kontaktstelle zugeordneten Lichtbogenlöschkammer, und einer der Kontaktstelle zugeordneten Lichtbogenblaseinrichtung. Die Lichtbogenlöschkammer weist eine Austrittsöffnung auf, durch die Plasma, das durch einen beim Öffnen der Kontaktstelle entstehenden Schaltlichtbogen innerhalb des Schaltgeräts erzeugt wird, aus dem Schaltgerät austreten kann, wobei die Austrittsöffnung ein lichtes Durchgangsmaß aufweist und eine Austrittsebene definiert. Die Lichtbogenblaseinrichtung ist zur Erzeugung eines magnetischen Blasfelds vorgesehen, durch das der beim Öffnen der Kontaktstelle entstehende Schaltlichtbogen von der Kontaktstelle weg zur Austrittsöffnung hin geblasen wird. Das Schaltgerät weist ferner zumindest ein erstes Lichtbogenleitblech auf, das sich von der Kontaktstelle zur Austrittsöffnung hin erstreckt und durch das der Schaltlichtbogen auf dem Weg von der Kontaktstelle zur Austrittsöffnung geführt und gestreckt wird, wobei das erste Lichtbogenleitblech zwischen der Kontaktstelle und der Austrittsebene innerhalb der Lichtbogenlöschkammer einen ersten Abschnitt und einen zweiten Abschnitt aufweist, wobei der erste Abschnitt des ersten Lichtbogenleitblechs proximal zur Kontaktstelle, und der zweite Abschnitt des ersten Lichtbogenleitblechs distal zur Kontaktstelle angeordnet ist. Erfindungsgemäß ist vorgesehen, dass sich der zweite Abschnitt des ersten Lichtbogenleitblechs in einer Richtung, die parallel zur Austrittsebene verläuft, über die Austrittsöffnung hinaus erstreckt, so dass der Schaltlichtbogen durch den zweiten Abschnitt des ersten Lichtbogenleitblechs zumindest an einem Ende des Schaltlichtbogens über das lichte Durchgangsmaß der Austrittsöffnung hinaus gestreckt wird, wobei vor der Austrittsöffnung ein von dem zweiten Abschnitt des ersten Lichtbogenleitblechs abstehender Lichtbogenführungsstift angeordnet ist, durch welchen der Schaltlichtbogen vor der Austrittsöffnung wieder verkürzt wird.The present invention relates to a switching device having at least one contact point, an arc quenching chamber associated with the contact point, and an arc blowing device associated with the contact point. The arc quenching chamber has an outlet opening, can escape from the switching device through the plasma generated by a resulting when opening the contact point switching arc within the switching device, wherein the outlet opening has a clear passage dimension and defines an exit plane. The arc blowing device is provided for generating a magnetic blowing field, through which the switching arc arising when the contact point is opened is blown away from the contact point to the outlet opening. The switching device further comprises at least a first arc guide plate extending from the contact point to the outlet opening and through which the switching arc on the way from the contact point to the outlet opening is guided and stretched, wherein the first arc guide between the contact point and the exit plane within the arc extinguishing chamber a first portion and a second portion, wherein the first portion of the first arc guide plate proximal to the contact point, and the second portion of the first arc guide plate is disposed distal to the contact point. According to the invention, the second section of the first arc guide plate extends beyond the outlet opening in a direction that runs parallel to the exit plane, so that the switching arc passes through the second section of the first arc guide plate at least at one end of the switching arc over the clear passage dimension Outlet opening is stretched out, wherein in front of the outlet opening projecting from the second portion of the first arc guide plate arc guide pin is arranged, through which the switching arc is shortened again in front of the outlet opening.
Description
Die vorliegende Erfindung betrifft ein Schaltgerät nach dem Oberbegriff des unabhängigen Anspruchs 1.The present invention relates to a switching device according to the preamble of
Ein gattungsgemäßes Schaltgerät weist zumindest eine Kontaktstelle, eine der Kontaktstelle zugeordnete Lichtbogenlöschkammer, und eine der Kontaktstelle zugeordnete Lichtbogenblaseinrichtung auf. Die Lichtbogenlöschkammer weist eine Austrittsöffnung auf, durch die Plasma, das durch einen beim Öffnen der Kontaktstelle entstehenden Schaltlichtbogen innerhalb des Schaltgeräts erzeugt wird, aus dem Schaltgerät austreten kann, wobei die Austrittsöffnung ein lichtes Durchgangsmaß aufweist und eine Austrittsebene definiert. Die Lichtbogenblaseinrichtung ist zur Erzeugung eines magnetischen Blasfelds vorgesehen, durch das der beim Öffnen der Kontaktstelle entstehende Schaltlichtbogen von der Kontaktstelle weg zur Austrittsöffnung hin geblasen wird. Das Schaltgerät weist ferner zumindest ein erstes Lichtbogenleitblech auf, das sich von der Kontaktstelle zur Austrittsöffnung hin erstreckt und durch das der Schaltlichtbogen auf dem Weg von der Kontaktstelle zur Austrittsöffnung geführt und gestreckt wird, wobei das erste Lichtbogenleitblech zwischen der Kontaktstelle und der Austrittsebene innerhalb der Lichtbogenlöschkammer einen ersten Abschnitt und einen zweiten Abschnitt aufweist, wobei der erste Abschnitt des ersten Lichtbogenleitblechs proximal zur Kontaktstelle, und der zweite Abschnitt des ersten Lichtbogenleitblechs distal zur Kontaktstelle angeordnet ist.A generic switching device has at least one contact point, an arc quenching chamber associated with the contact point, and an arc blowing device associated with the contact point. The arc quenching chamber has an outlet opening, can escape from the switching device through the plasma generated by a resulting when opening the contact point switching arc within the switching device, wherein the outlet opening has a clear passage dimension and defines an exit plane. The arc blowing device is provided for generating a magnetic blowing field, through which the switching arc arising when the contact point is opened is blown away from the contact point to the outlet opening. The switching device further comprises at least a first arc guide plate extending from the contact point to the outlet opening and through which the switching arc on the way from the contact point to the outlet opening is guided and stretched, wherein the first arc guide between the contact point and the exit plane within the arc extinguishing chamber a first portion and a second portion, wherein the first portion of the first arc guide plate proximal to the contact point, and the second portion of the first arc guide plate is disposed distal to the contact point.
Ein Schaltgerät nach dem Oberbegriff des unabhängigen Anspruchs 1 ist beispielsweise aus
Der beim Öffnen der Kontaktstelle entstehende Schaltlichtbogen wird innerhalb des Schaltgeräts bzw. innerhalb der Lichtbogenlöschkammer gestreckt, um den Schaltlichtbogen mithilfe der in der Austrittsöffnung der Lichtbogenlöschkammer üblicherweise vorgesehenen Löschelemente zuverlässig zum Erlöschen zu bringen. Üblicherweise sind hierzu zwei Lichtbogenleitbleche vorgesehen, die ausgehend von der Kontaktstelle relativ stark auseinanderlaufen, um den Schaltlichtbogen schnell zu strecken. Üblicherweise wird der Schaltlichtbogen dabei innerhalb des Schaltgeräts auf das lichte Durchgangsmaß der Austrittsöffnung der Lichtbogenlöschkammer gestreckt. Aufgrund gewisser konstruktiver Randbedingungen ist es zuweilen wünschenswert, die Austrittsöffnung kleiner halten zu können, als den Abstand zwischen den austrittsseitigen Enden der beiden Lichtbogenleitbleche, insbesondere wenn eines der beiden Lichtbogenleitbleche als Anschlusskontakt aus dem Gehäuse des Schaltgeräts herausgeführt wird, so wie es bei einem Ausführungsbeispiel der veröffentlichten europäischen Patentanmeldung
Die vorliegende Erfindung hat sich daher zur Aufgabe gestellt, ein Schaltgerät der gattungsgemäßen Art anzugeben, dass eine zuverlässige Löschung des Schaltlichtbogens ermöglicht und einfach und kostengünstig hergestellt werden kann.The present invention has therefore set itself the task of specifying a switching device of the generic type that enables a reliable deletion of the switching arc and can be easily and inexpensively manufactured.
Die Aufgabe wird gelöst durch die Merkmale des unabhängigen Anspruchs 1. Demnach liegt bei einem Schaltgerät gemäß dem Oberbegriff des unabhängigen Anspruchs 1 dann eine erfindungsgemäße Lösung der Aufgabe vor, wenn sich der zweite Abschnitt des ersten Lichtbogenleitblechs in einer Richtung, die parallel zur Austrittsebene verläuft, über die Austrittsöffnung hinaus erstreckt, so dass der Schaltlichtbogen durch den zweiten Abschnitt des ersten Lichtbogenleitblechs zumindest an einem Ende des Schaltlichtbogens über das lichte Durchgangsmaß der Austrittsöffnung hinaus gestreckt wird, wobei vor der Austrittsöffnung ein von dem zweiten Abschnitt des ersten Lichtbogenleitblechs abstehender Lichtbogenführungsstift angeordnet ist, durch welchen der Schaltlichtbogen vor der Austrittsöffnung wieder verkürzt wird.The object is achieved by the features of
Die erfindungsgemäße Lösung bietet den Vorteil, dass der Schaltlichtbogen innerhalb des Schaltgeräts besonders schnell und stark gestreckt werden kann, was eine zuverlässige Löschung des Schaltlichtbogens begünstigt. Gleichzeitig kann das Lichtbogenleitblech mit Abstand zur Austrittsöffnung der Lichtbogenlöschkammer aus dem Gehäuse des Schaltgeräts herausgeführt werden, was aufgrund gewisser konstruktiver Randbedingungen zuweilen notwendig sein kann. Die erfindungsgemäße Lösung verhindert dabei unerwünschte Plasmakonzentrationen innerhalb des Schaltgeräts. Selbst Lichtbogenleitbleche mit erheblicher Materialstärke können relativ einfach, kostengünstig und präzise hergestellt werden, da ein stufenförmiger Verlauf des Lichtbogenleitblechs nicht notwendig ist. Der erfindungsgemäß vorgesehene Lichtbogenführungsstift ist, ebenso wie das Lichtbogenleitblech, aus einem elektrisch leitenden Material gefertigt. Der Lichtbogenführungsstift kann aus dem gleichen Material bestehen wie das Lichtbogenleitblech. Lichtbogenleitblech und Lichtbogenführungsstift können beispielsweise aus Kupfer bestehen.The solution according to the invention has the advantage that the switching arc can be stretched particularly fast and strong within the switching device, which favors a reliable deletion of the switching arc. At the same time the arc guide plate can be led out of the housing of the switching device at a distance from the outlet opening of the arc extinguishing chamber, which may sometimes be necessary due to certain structural boundary conditions. The solution according to the invention prevents unwanted plasma concentrations within the switching device. Even arc guide with considerable material thickness can be relatively easily, inexpensively and accurately produced, since a step-shaped course of the arc guide is not necessary. The inventively provided arc guide pin is, as well as the arc guide plate, made of an electrically conductive material. The arc guide pin can be made of the same material as the arc guide plate. Arc guide plate and arc guide pin can for example consist of copper.
Das lichte Durchgangsmaß der Austrittsöffnung der Lichtbogenlöschkammer wird in Richtung der auf die Austrittsebene projizierten Längserstreckung des Schaltlichtbogens gemessen. Der Schaltlichtbogen muss auf der dem ersten Lichtbogenleitblech gegenüberliegenden Seite nicht zwangsweise ebenfalls über die Austrittsöffnung hinaus gestreckt werden. Unter einer Streckung des Schaltlichtbogens über das lichte Durchgangsmaß der Austrittsöffnung hinaus soll im Sinne der vorliegenden Anmeldung auch der Fall verstanden werden, dass der Schaltlichtbogen lediglich auf der Seite des ersten Lichtbogenleitblechs so stark gestreckt wird, dass er auf dieser Seite sozusagen nicht durch die Austrittsöffnung passt.The clear passage dimension of the outlet opening of the arc quenching chamber is measured in the direction of the longitudinal extent of the switching arc projected onto the exit plane. The switching arc need not necessarily be stretched beyond the outlet opening on the side opposite the first arc guide plate. In the context of the present application, a stretching of the switching arc beyond the clear passage dimension of the outlet opening should also be understood as meaning that the switching arc is stretched so much only on the side of the first arc guide plate that it does not pass through the outlet opening on this side, so to speak ,
Vorteilhafte Ausführungsformen der vorliegenden Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the present invention are the subject of the dependent claims.
Der Lichtbogenführungsstift kann besonders einfach und kostengünstig hergestellt werden, wenn es sich bei dem Lichtbogenführungsstift um einen einfachen zylindrischen Bolzen handelt. Der Lichtbogenführungsstift kann jedoch auch verschiedene andere Formen aufweisen. Beispielsweise kann auch ein Bolzen mit einem sechseckigen Querschnitt verwendet werden. Derartige Bolzen sind als Standardteile am Markt verfügbar und daher ebenfalls kostengünstig. Als Lichtbogenführungsstift kann beispielsweise auch ein länglicher Blechstreifen verwendet werden. Gemäß einer besonders bevorzugten Ausführungsform der vorliegenden Erfindung handelt es sich bei dem Lichtbogenführungsstift um einen Bügel, der sich quer zum ersten Lichtbogenleitblech erstreckt, und dessen freie Enden am ersten Lichtbogenleitblech befestigt sind. Der Bügel weist vorzugsweise eine U-Form auf. Die beiden freien Enden des Bügels können beispielsweise mit dem ersten Lichtbogenleitblech verschraubt sein. Der Bügel erstreckt sich vorzugsweise quer zum ersten Lichtbogenleitblech über zumindest 50 % der Breite des ersten Lichtbogenleitblechs.The arc guide pin can be made particularly simple and inexpensive if the arc guide pin is a simple cylindrical pin. However, the arc guide pin may also have various other shapes. For example, a bolt with a hexagonal cross section can be used. Such bolts are available as standard parts on the market and therefore also inexpensive. As an arc guide pin, for example, an elongated sheet metal strip can be used. According to a particularly preferred embodiment of the present invention, the arc guide pin is a bracket which extends transversely to the first arc guide plate, and whose free ends are fixed to the first arc guide plate. The bracket preferably has a U-shape. The two free ends of the bracket can be bolted to the first arc guide plate, for example. The bracket preferably extends transversely to the first arc guide plate over at least 50% of the width of the first arc guide plate.
Gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung steht der Lichtbogenführungsstift senkrecht von dem zweiten Abschnitt des ersten Lichtbogenleitblechs ab. Bei dieser Ausführungsform ergeben sich eine einfache konstruktive Ausführung sowie eine wirksame Verkürzung des Schaltlichtbogens unmittelbar bevor der Schaltlichtbogen in die Austrittsöffnung geblasen wird.According to a preferred embodiment of the present invention, the arc guide pin is perpendicular from the second portion of the first arc guide. In this embodiment, a simple structural design as well as an effective shortening of the switching arc immediately before the switching arc is blown into the outlet opening.
Gemäß einer weiteren besonders bevorzugten Ausführungsform der vorliegenden Erfindung endet der Lichtbogenführungsstift in einer Richtung, die parallel zur Austrittsebene verläuft, etwa auf Höhe der Austrittsöffnung, sodass der Schaltlichtbogen durch den Lichtbogenführungsstift auf das lichte Durchgangsmaß der Austrittsöffnung verkürzt wird. Bei dieser Ausführungsform werden unerwünschte Plasmakonzentrationen im Inneren des Schaltgeräts am wirksamsten vermieden, wobei der Schaltlichtbogen vor dem Eintritt in die Austrittsöffnung trotzdem optimal gestreckt wird bzw. bleibt.According to a further particularly preferred embodiment of the present invention, the arc guide pin ends in a direction which is parallel to the exit plane, approximately at the level of the outlet opening, so that the switching arc is shortened by the arc guide pin to the clear passage dimension of the outlet opening. In this embodiment, unwanted plasma concentrations in the interior of the switching device am most effectively avoided, the switching arc is still optimally stretched before entering the outlet opening or remains.
Gemäß einer weiteren bevorzugten Ausführungsform der vorliegenden Erfindung weist der Lichtbogenführungsstift ein leitblechseitiges Ende mit einem Gewindeabschnitt auf, wobei der Gewindeabschnitt mit einem entsprechenden Innengewinde einer Bohrung in dem ersten Lichtbogenleitblech verschraubt ist. Bei dieser Ausführungsform ergibt sich eine besonders einfache und kostengünstige Herstellung bzw. Montage.According to a further preferred embodiment of the present invention, the arc guide pin on a baffle-side end with a threaded portion, wherein the threaded portion is screwed to a corresponding internal thread of a bore in the first arc guide plate. In this embodiment, a particularly simple and cost-effective production or assembly results.
Gemäß einer weiteren bevorzugten Ausführungsform der vorliegenden Erfindung weist der Lichtbogenführungsstift an seinem dem ersten Lichtbogenleitblech abgewandten Ende eine Fase auf. Die Fase verhindert, dass der Lichtbogenführungsstift am oberen Ende durch den Schaltlichtbogen zerstört wird bzw. einem frühzeitigen Verschleiß unterliegt. Bei dieser Ausführungsform ist der Lichtbogenführungsstift vorzugsweise als Bolzen, weiter vorzugsweise als einfacher zylindrischer Bolzen ausgeführt.According to a further preferred embodiment of the present invention, the arc guide pin has a chamfer at its end facing away from the first arc guide plate. The chamfer prevents the arc guide pin is destroyed by the switching arc at the top or subject to premature wear. In this embodiment, the arc guide pin is preferably designed as a bolt, more preferably as a simple cylindrical bolt.
Gemäß einer weiteren bevorzugten Ausführungsform der vorliegenden Erfindung weist die Lichtbogenlöschkammer mehrere Löschelemente auf, die jeweils voneinander beanstandet in der Austrittsöffnung angeordnet sind, wobei das Plasma, das durch den Schaltlichtbogen innerhalb des Schaltgeräts erzeugt wird, zwischen den Löschelementen hindurch aus der Austrittsöffnung austreten kann. Bei dieser Ausführungsform wird eine besonders zuverlässige Löschung des Schaltlichtbogens gewährleistet. An dieser Stelle soll erwähnt werden, dass die Austrittsöffnung bezogen auf die Hauptbewegungsrichtung des Schaltlichtbogens nicht infinitesimal klein und sozusagen auf die Austrittsebene beschränkt ist sondern eine gewisse Tiefe aufweist, die der Länge der Löschelemente entspricht.According to a further preferred embodiment of the present invention, the arc extinguishing chamber has a plurality of extinguishing elements, which are each arranged spaced apart in the outlet opening, wherein the plasma generated by the switching arc within the switching device can escape between the extinguishing elements through the outlet opening. In this embodiment, a particularly reliable erasure of the switching arc is ensured. At this point, it should be mentioned that the outlet opening is not infinitesimally small relative to the main movement direction of the switching arc and, so to speak, limited to the exit plane but has a certain depth which corresponds to the length of the deletion elements.
Gemäß einer weiteren besonders bevorzugten Ausführungsform der vorliegenden Erfindung weist das erste Lichtbogenleitblech einen an den zweiten Abschnitt anschließenden dritten Abschnitt auf, der aus einem Gehäuse des Schaltgeräts herausgeführt ist und gleichzeitig einen ersten Anschlusskontakt des Schaltgeräts bildet. Dabei ist ein Anschlussbolzen des ersten Anschlusskontakts, in einer Richtung parallel zur Austrittsebene betrachtet, vorzugsweise zwischen dem ersten Lichtbogenleitblech und der Austrittsöffnung angeordnet. Diese Ausführungsform kennzeichnet ein erfindungsgemäßes Schaltgerät mit besonders kompakter Bauform. Der Anschlussbolzen ist vorzugsweise unterhalb der Löschelemente angeordnet, die sich in einer seitlich angeordneten Austrittsöffnung des Schaltgeräts befinden. Gemäß einer weiteren bevorzugten Ausführungsform der vorliegenden Erfindung ist ein Festkontakt der Kontaktstelle Teil des ersten Lichtbogenleitblechs, wobei der erste Abschnitt des ersten Lichtbogenleitblechs direkt an den Festkontakt anschließt und gegenüber dem Festkontakt abgewinkelt ist, sodass der Schaltlichtbogen durch den ersten Abschnitt gestreckt wird, wobei zumindest ein Teil des zweiten Abschnitts des ersten Lichtbogenleitblechs wiederum gegenüber dem ersten Abschnitt abgewinkelt ist und im Wesentlichen parallel zu dem Festkontakt verläuft. Bei dieser Ausführungsform ergibt sich eine besonders einfache und kostengünstige Konstruktion des erfindungsgemäßen Schaltgeräts, insbesondere durch das integral mit dem Festkontakt ausgeführte Lichtbogenleitblech. Im Wesentlichen parallel bedeutet in diesem Zusammenhang eine Abweichung von maximal plus minus 5°. Es ist von besonderem Vorteil, wenn das erste Lichtbogenleitblech lediglich zwei Abwinklungen aufweist. Weiter vorzugsweise ist das Lichtbogenleitblech mehr als 10 mm dick und weiter vorzugsweise breiter als 30 mm. Bei dieser Ausführungsform ist es von besonderem Vorteil, wenn das erste Lichtbogenleitblech lediglich zweimal abgebogen werden muss.According to a further particularly preferred embodiment of the present invention, the first arc guide plate has a third section adjoining the second section, which is led out of a housing of the switching device and at the same time forms a first connection contact of the switching device. In this case, a connection bolt of the first connection contact, viewed in a direction parallel to the exit plane, is preferably arranged between the first arc guide plate and the outlet opening. This embodiment features an inventive switching device with a particularly compact design. The connecting bolt is preferably arranged below the extinguishing elements, which are located in a laterally arranged outlet opening of the switching device. According to a further preferred embodiment of the present invention, a fixed contact of the contact point is part of the first arc guide plate, wherein the first portion of the first arc guide plate connects directly to the fixed contact and angled relative to the fixed contact, so that the switching arc is stretched by the first section, wherein at least one Part of the second portion of the first arc guide is in turn angled relative to the first portion and extends substantially parallel to the fixed contact. In this embodiment, a particularly simple and inexpensive construction of the switching device according to the invention, in particular by the integrally formed with the fixed contact arc guide plate. Essentially parallel in this context means a deviation of
Gemäß einer weiteren Ausführungsform der vorliegenden Erfindung weist das Schaltgerät ferner ein zweites Lichtbogenleitblech auf, wobei erstes und zweites Lichtbogenleitblech von der Kontaktstelle ausgehend derart auseinanderlaufen, dass der Schaltlichtbogen zunächst auf eine Länge gestreckt wird, die über dem lichten Durchgangsmaß der Austrittsöffnung liegt, wobei der Schaltlichtbogen vor der Austrittsöffnung aufgrund des Lichtbogenführungsstifts wieder verkürzt wird.According to a further embodiment of the present invention, the switching device further comprises a second arc guide plate, wherein first and second Lichtbogenleitblech starting from the contact point diverge such that the switching arc is first stretched to a length which is above the clear passage dimension of the outlet opening, wherein the switching arc is shortened again in front of the outlet opening due to the arc guide pin.
Ausführungsbeispiele der vorliegenden Erfindung werden im folgenden anhand von Zeichnungen näher erläutert.Embodiments of the present invention are explained below with reference to drawings.
Es zeigen:
Figur 1- eine schematische Schrägansicht eines erfindungsgemäßen Schaltgeräts gemäß einem ersten Ausführungsbeispiel mit aus Darstellungsgründen geöffnet gezeigtem Gehäuse,
Figur 2- das erfindungsgemäße Schaltgerät aus
in einer Seitenansicht,Figur 1 - Figur 3
- eine Detailansicht des ersten Lichtbogenleitblechs des erfindungsgemäßen Schaltgeräts aus den
undFiguren 12 mit abgeschraubtem Lichtbogenführungsstift, Figur 4- eine Abwandlung des erfindungsgemäßen Schaltgeräts aus
den Figuren 1 bis 3 in einer Seitenansicht, und Figur 5- die Detailansicht aus
Figur 3 mit einem alternativen Lichtbogenführungsstift.
- FIG. 1
- 2 is a schematic perspective view of a switching device according to the invention in accordance with a first exemplary embodiment, with the housing shown opened for purposes of illustration;
- FIG. 2
- the switching device according to the invention
FIG. 1 in a side view, - FIG. 3
- a detailed view of the first arc guide plate of the switching device according to the invention from the
FIGS. 1 and2 with unscrewed arc guide pin, - FIG. 4
- a modification of the switching device according to the invention from the
FIGS. 1 to 3 in a side view, and - FIG. 5
- the detail view
FIG. 3 with an alternative arc guide pin.
Innerhalb des Gehäuses 20 ist eine Kontaktstelle 2 des Schaltgeräts 1 angeordnet. Die Kontaktstelle 2 umfasst einen Festkontakt 18 und einen beweglichen Kontakt 21, der sich auf einer Kontaktbrücke befindet und mittels eines nicht dargestellten Antriebs des erfindungsgemäßen Schaltgeräts mit dem Festkontakt 18 in Kontakt gebracht werden kann. Von dem Antrieb des Schaltgeräts ist in der Darstellung lediglich die mit der Kontaktbrücke verbundene Ankerstange 22 dargestellt.Within the
Der Kontaktstelle 2 ist eine Lichtbogenlöschkammer zugeordnet, die auf der linken Gehäuseseite eine Austrittsöffnung 3 aufweist, durch die Plasma, das durch einen beim Öffnen der Kontaktstelle entstehenden Schaltlichtbogen innerhalb des Schaltgeräts erzeugt wird, aus dem Schaltgerät austreten kann. In
Der Kontaktstelle 2 ist ferner eine Lichtbogenblaseinrichtung zur Erzeugung eines magnetischen Blasfelds zugeordnet, durch das der beim Öffnen der Kontaktstelle entstehende Schaltlichtbogen von der Kontaktstelle 2 weg hin zur Austrittsöffnung 3 geblasen wird. Die Lichtbogenblaseinrichtung weist den in den
Der beim Öffnen der Kontaktstelle entstehende Schaltlichtbogen ist in
Der Lichtbogenführungsstift 12 ist als einfacher zylindrische Bolzen ausgeführt. In
Claims (11)
dadurch gekennzeichnet, dass sich der zweite Abschnitt (10) des ersten Lichtbogenleitblechs (8) in einer Richtung, die parallel zur Austrittsebene (6) verläuft, über die Austrittsöffnung (3) hinaus erstreckt, so dass der Schaltlichtbogen (4, 4', 4") durch den zweiten Abschnitt (10) des ersten Lichtbogenleitblechs (8) zumindest an einem Ende des Schaltlichtbogens über das lichte Durchgangsmaß (5) der Austrittsöffnung (3) hinaus gestreckt wird, wobei vor der Austrittsöffnung (3) ein von dem zweiten Abschnitt (10) des ersten Lichtbogenleitblechs (8) abstehender Lichtbogenführungsstift (12) angeordnet ist, durch welchen der Schaltlichtbogen vor der Austrittsöffnung wieder verkürzt wird.Switching device (1) with
characterized in that the second section (10) of the first arc guide plate (8) extends beyond the outlet opening (3) in a direction parallel to the exit plane (6) so that the switching arc (4, 4 ', 4 ") is stretched beyond the clear passage dimension (5) of the outlet opening (3) through the second section (10) of the first arc guide plate (8) at least at one end of the switching arc, one of the second section (3) being located in front of the outlet opening (3). 10) of the first arc guide plate (8) projecting arc guide pin (12) is arranged, through which the switching arc before the outlet opening is shortened again.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102017125685.7A DE102017125685A1 (en) | 2017-11-03 | 2017-11-03 | Switchgear with arc quenching device and arc guide |
Publications (2)
Publication Number | Publication Date |
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EP3480837A1 true EP3480837A1 (en) | 2019-05-08 |
EP3480837B1 EP3480837B1 (en) | 2022-01-12 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP18203408.2A Active EP3480837B1 (en) | 2017-11-03 | 2018-10-30 | Switching device with arc extinguishing device and arc guiding |
Country Status (9)
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US (1) | US10692671B2 (en) |
EP (1) | EP3480837B1 (en) |
JP (1) | JP6681962B2 (en) |
KR (1) | KR102138436B1 (en) |
CN (1) | CN109755056B (en) |
DE (1) | DE102017125685A1 (en) |
ES (1) | ES2906808T3 (en) |
RU (1) | RU2708384C1 (en) |
ZA (1) | ZA201807323B (en) |
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KR102556750B1 (en) * | 2020-03-20 | 2023-07-18 | 엘에스일렉트릭(주) | Arc extinguishing assembly and circuit breaker having the same |
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GB2163293A (en) * | 1984-08-15 | 1986-02-19 | Mitsubishi Electric Corp | Circuit-breaker arc control |
WO2011147458A1 (en) * | 2010-05-28 | 2011-12-01 | Abb Research Ltd | A dc switching device |
EP3048626A1 (en) * | 2015-01-22 | 2016-07-27 | Schaltbau GmbH | Switching device with permanent magnetic arc extinction |
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US3560685A (en) * | 1969-05-26 | 1971-02-02 | Gen Electric | Arc chute for an electric cuircuit breaker |
RU2136074C1 (en) * | 1996-09-30 | 1999-08-27 | Акционерное общество закрытого типа "Контактор" | Automatic switch |
DE102006035844B4 (en) * | 2006-08-01 | 2008-06-19 | Schaltbau Gmbh | Contactor for DC and AC operation |
FR2918209B1 (en) * | 2007-06-29 | 2009-07-31 | Schneider Electric Ind Sas | ELECTRICAL CUTTING APPARATUS COMPRISING AN ADDITIONAL ELECTRICAL FUNCTION |
KR100910525B1 (en) * | 2007-09-03 | 2009-07-31 | 엘에스산전 주식회사 | Arc extinguishing device of manual motor starter |
DE102007054958A1 (en) * | 2007-11-17 | 2009-06-04 | Moeller Gmbh | Switching device for DC applications |
EP2551867A1 (en) * | 2011-07-28 | 2013-01-30 | Eaton Industries GmbH | Switch for direct current operation |
US8368492B1 (en) * | 2012-08-24 | 2013-02-05 | Eaton Corporation | Bidirectional direct current electrical switching apparatus |
DE102012223168A1 (en) * | 2012-08-29 | 2014-03-06 | Siemens Aktiengesellschaft | Electromechanical switching device, has arc-quenching device comprising first permanent magnet and second permanent magnet that are arranged on both sides of switching contact, where magnets are magnetized in opposite directions |
EP3025361B1 (en) * | 2013-12-18 | 2018-03-07 | Siemens Aktiengesellschaft | Switching device with electromagnetic arc deflection |
CN105097376B (en) * | 2014-05-07 | 2019-01-11 | 布蒂克诺公司 | Breaker with arc extinguishing barrier |
-
2017
- 2017-11-03 DE DE102017125685.7A patent/DE102017125685A1/en not_active Ceased
-
2018
- 2018-10-30 RU RU2018138294A patent/RU2708384C1/en active
- 2018-10-30 JP JP2018203887A patent/JP6681962B2/en active Active
- 2018-10-30 EP EP18203408.2A patent/EP3480837B1/en active Active
- 2018-10-30 ES ES18203408T patent/ES2906808T3/en active Active
- 2018-11-01 ZA ZA2018/07323A patent/ZA201807323B/en unknown
- 2018-11-02 KR KR1020180133693A patent/KR102138436B1/en active IP Right Grant
- 2018-11-02 CN CN201811301420.8A patent/CN109755056B/en active Active
- 2018-11-02 US US16/179,778 patent/US10692671B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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GB2163293A (en) * | 1984-08-15 | 1986-02-19 | Mitsubishi Electric Corp | Circuit-breaker arc control |
WO2011147458A1 (en) * | 2010-05-28 | 2011-12-01 | Abb Research Ltd | A dc switching device |
EP3048626A1 (en) * | 2015-01-22 | 2016-07-27 | Schaltbau GmbH | Switching device with permanent magnetic arc extinction |
Also Published As
Publication number | Publication date |
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DE102017125685A1 (en) | 2019-05-09 |
CN109755056B (en) | 2020-09-18 |
US20190139728A1 (en) | 2019-05-09 |
RU2708384C1 (en) | 2019-12-06 |
KR102138436B1 (en) | 2020-07-27 |
JP6681962B2 (en) | 2020-04-15 |
KR20190050721A (en) | 2019-05-13 |
US10692671B2 (en) | 2020-06-23 |
CN109755056A (en) | 2019-05-14 |
JP2019091687A (en) | 2019-06-13 |
EP3480837B1 (en) | 2022-01-12 |
ZA201807323B (en) | 2019-08-28 |
ES2906808T3 (en) | 2022-04-20 |
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